Grumpy Testing Patterns - Reducing Testing Code Duplication

Ladies and gentlemen, boys and girls, cats of all ages! This time out, I want to share some common testing patterns for reducing the amount of duplication in your test code. As with all other installments of this series, my goal is to teach you to recognize the situations you come across while creating tests for your PHP code and the patterns you can apply to get repeatable results. I'll be sharing examples in PHPUnit and Pest — these patterns can be applied to almost any assertion-based testing framework across other languages.